Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 5, 2024
Abstract
2D
materials
have
garnered
considerable
interest
in
various
applications
from
catalysis
to
energy
storage.
However,
the
self‐stacking
and
poor
air
stability
of
(e.g.,
MXene)
leads
serious
performance
degradation,
particular,
micro‐supercapacitors
(MSCs)
with
narrow
working
voltage
low
density.
Here,
a
universal
confined
interfacial
assembly
strategy
is
demonstrated
for
controllably
synthesizing
series
mesoporous
heterostructures
high‐voltage
high‐energy
ionogel‐based
MSCs.
This
process
reveals
accurate
controllability
extraordinary
versatility,
endowing
highly
adjustable
mesopore
size
(7–22
nm),
tunable
thickness
(15–29
variable
carbon
precursors
(including
oligochitosan,
glucose,
sucrose),
replaceable
substrates
MXene,
graphene,
BN,
MoS
2
).
As
proof
concept,
carbon@MXene
based
MSCs
ionic
liquid
ionogel
electrolyte
deliver
ultrahigh
3.7
V,
superior
areal
density
181.3
µWh
cm
−2
,
excellent
flexibility
99%
capacitance
retention
at
180°,
modular
self‐integration
voltage/capacitance
output,
surpassing
most
reported
MXene
Therefore,
this
work
will
open
novel
available
paradigm
scalable
fabrication
target
high‐performance
functional
microscale
power
source.
Journal of Materiomics,
Journal Year:
2023,
Volume and Issue:
9(6), P. 1196 - 1241
Published: Sept. 27, 2023
MXenes,
a
class
of
two-dimensional
materials,
have
garnered
significant
attention
due
to
their
unique
properties
and
versatile
applications
in
various
fields.
This
review
provides
comprehensive
overview
MXene
synthesis
methods,
highlighting
distinctive
layered
structure
tunable
through
surface
functionalization.
The
focus
then
shifts
remarkable
role
supercapacitor
technology.
MXenes
exhibit
high
electrical
conductivity,
large
areas,
tailored
chemistry,
making
them
promising
candidates
for
energy
storage
supercapacitors.
paper
discusses
the
interplay
electric
double-layer
capacitance
pseudocapacitance
mechanisms
within
MXene-based
electrodes,
detailing
recent
research
efforts
aimed
at
optimizing
performance.
Through
combination
theoretical
insights
experimental
findings,
potential
revolutionize
technology
emerges,
offering
prospects
high-energy-density
long-lasting
solutions.
Additionally,
this
highlights
advances
supercapacitors,
including
novel
electrode
designs,
electrolyte
engineering,
hybrid
showcasing
dynamic
evolution
research.
aims
provide
thorough
understanding
MXenes'
synthesis,
properties,
pivotal
advancing
technology,
while
also
encompassing
latest
breakthroughs
rapidly
evolving
field.
Energy & environment materials,
Journal Year:
2023,
Volume and Issue:
7(3)
Published: June 29, 2023
In
recent
years,
paper‐based
functional
materials
have
received
extensive
attention
in
the
field
of
energy
storage
due
to
their
advantages
rich
and
adjustable
porous
network
structure
good
flexibility.
As
an
important
device,
supercapacitors
application
prospects
many
fields
also
from
researchers
years.
At
present,
modified
regulated
by
different
means
such
as
structural
design
material
composition
enhance
electrochemical
capacity.
The
development
provides
direction
for
green
sustainable
energy.
Therefore,
it
is
great
significance
summarize
relevant
work
rapid
application.
this
review,
research
progress
based
on
cellulose
was
summarized
terms
various
cellulose‐based
composites,
preparation
skills,
performance.
Finally,
some
opinions
problems
future
trend
were
proposed.
It
hoped
that
review
can
provide
valuable
references
ideas
devices.
Carbon Energy,
Journal Year:
2024,
Volume and Issue:
6(8)
Published: March 7, 2024
Abstract
The
rapid
advancement
in
the
miniaturization,
integration,
and
intelligence
of
electronic
devices
has
escalated
demand
for
customizable
micro‐supercapacitors
(MSCs)
with
high
energy
density.
However,
efficient
microfabrication
safe
high‐energy
MXene
MSCs
integrating
microelectronics
remains
a
significant
challenge
due
to
low
voltage
window
aqueous
electrolytes
(typically
≤0.6
V)
limited
areal
mass
loading
microelectrodes.
Here,
we
tackle
these
challenges
by
developing
high‐concentration
(18
mol
kg
−1
)
“water‐in‐LiBr”
(WiB)
gel
electrolyte
symmetric
(M‐SMSCs),
demonstrating
record
1.8
V.
Subsequently,
additive‐free
ink
excellent
rheological
behavior
is
developed
three‐dimensional
(3D)
printing
all‐MXene
microelectrodes
on
various
substrates.
Leveraging
synergy
high‐voltage
WiB
3D‐printed
microelectrodes,
quasi‐solid‐state
M‐SMSCs
operating
stably
at
V
are
constructed,
achieve
an
ultrahigh
density
1772
μWh
cm
−2
low‐temperature
tolerance,
long‐term
operation
−40°C.
Finally,
extending
3D
protocol,
integrated
humidity
sensors
single
planar
substrate,
their
reliability
miniaturized
microsystems.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(6), P. 4651 - 4682
Published: Feb. 2, 2024
MXenes
have
shown
great
potential
for
micro-supercapacitors
(MSCs)
due
to
the
high
metallic
conductivity,
tunable
interlayer
spacing
and
intercalation
pseudocapacitance.
In
particular,
negative
surface
charge
hydrophilicity
of
make
them
suitable
various
solution
processing
strategies.
Nevertheless,
a
comprehensive
review
MXene
MSCs
has
not
been
conducted.
this
review,
we
present
summary
state-of-the-art
in
terms
ink
rheology,
microelectrode
design
integrated
system.
The
formulation
rheological
behavior
different
strategies,
which
are
essential
quality
printed/coated
films,
presented.
effects
its
compounds,
3D
electrode
structure,
asymmetric
on
electrochemical
properties
discussed
detail.
Equally
important,
summarize
system
intelligent
applications
current
challenges
prospects
development
high-performance
MSCs.
Small,
Journal Year:
2023,
Volume and Issue:
19(44)
Published: June 28, 2023
Herein,
a
patterned
rod-like
CoP@NiCoP
core-shell
heterostructure
is
designed
to
consist
of
CoP
nanowires
cross-linked
with
NiCoP
nanosheets
in
tight
strings.
The
interfacial
interaction
within
the
heterojunction
between
two
components
generates
built-in
electric
field
that
adjusts
charge
state
and
create
more
active
sites,
accelerating
transfer
improving
supercapacitor
electrocatalytic
performance.
unique
structure
suppresses
volume
expansion
during
charging
discharging,
achieving
excellent
stability.
As
result,
exhibits
high
specific
capacitance
2.9
F
cm-2
at
current
density
3
mA
ion
diffusion
rate
(Dion
2.95
×
10-14
cm2
s-1
)
charging/discharging.
assembled
asymmetric
CoP@NiCoP//AC
energy
42.2
Wh
kg-1
power
126.5
W
stability
retention
83.8%
after
10
000
cycles.
Furthermore,
modulated
effect
induced
by
also
endows
self-supported
electrode
HER
performance
an
overpotential
71
mV
.
This
research
may
provide
new
perspective
on
generation
through
rational
design
heterogeneous
structures
for
electrochemical
electrocatalytical
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(24)
Published: Feb. 1, 2024
Abstract
MXenes
have
unique
properties
such
as
high
electrical
conductivity,
excellent
mechanical
properties,
rich
surface
chemistry,
and
convenient
processability.
These
characteristics
make
them
ideal
for
producing
flexible
materials
with
tunable
microstructures.
This
paper
reviews
the
laboratory
research
progress
of
MXene
its
composite
supercapacitors.
And
introduces
general
synthesis
method
MXene,
well
preparation
MXene.
By
analyzing
current
status,
electrochemical
reaction
mechanism
was
explained
from
perspectives
electrolyte
terminating
groups.
review
particularly
emphasizes
methods
freestanding
materials.
The
points
out
that
biggest
problem
electrodes
is
severe
self‐stacking,
which
reduces
number
chemically
active
sites,
weakens
ion
accessibility,
ultimately
lowers
performance.
Therefore,
it
necessary
to
other
electrode
design
a
good
microstructure.
affirms
enormous
potential
in
field
In
addition,
challenges
possible
improvements
faced
by
based
practical
applications
were
also
discussed.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(7), P. 2660 - 2686
Published: May 31, 2024
The
rapid
growth
of
the
global
population
and
industry
has
increased
warming
energy
consumption.
Clean,
sustainable,
renewable
sources
must
be
employed
if
this
critical
problem
is
to
resolved.
Hydrogen
(H2)
become
one
most
promising
fuel
within
range
alternatives.
A
noteworthy
method
creating
hydrogen
by
electrochemically
splitting
water
into
H2
O2.
As
a
result,
need
for
inexpensive,
accessible
catalysts
with
remarkable
catalytic
performance
producing
environmentally
friendly
crucial.
newly
emerging
class
2-D
layered
MXenes,
which
consists
nitrides,
transition
metal
carbides
(TMC),
carbonitrides,
an
impressive
competitor
in
race.
MXenes
offer
excellent
electrochemical
properties,
hydrophilicity,
reactivity,
making
them
suitable
water-splitting
applications.
However,
systematic
reviews
on
strategies
mechanical
chemistry
electrocatalytic
redox
reactions
productions
are
rare.
This
comprehensive
review
analysis
addresses
many
boosting
MXene
efficiency
during
oxygen
evolution
(OER)
(HER).
These
approaches
include
heteroatom
doping,
alloying,
quantum
dot
plasma
surface
modification.
Furthermore,
study
highlights
efforts
prospective
paths
increasing
economic
viability
as
electrocatalysts
green
generation.
opens
new
avenues
high-performance
applications,
more
sustainable
future.
